CORD-19:4abc50cfc81265083d4cb2aed0a493bb704d0b5b / 40034-40376 JSONTXT

{"project":"CORD-19-Sentences","denotations":[{"id":"TextSentencer_T198","span":{"begin":0,"end":342},"obj":"Sentence"},{"id":"T37170","span":{"begin":0,"end":342},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":"Currently, two major forms of RNA vaccines have been developed based on the auto-replicative capacity of messenger RNA (mRNA): conventional non-amplifying mRNA vaccines and self-amplifying mRNA vaccines (also termed replicons) derived from an RNA virus vector such as the Semliki Forest virus (SFV) that maintains replicative activity [116] ."}